Chapter 1-4 Geometry

1. statements that are assumed to be true without proof
3. equilateral triangle's, each angle will have the angle measurement of ___ degrees
7. an _____ triangle has three equal interior angles
9. lines are ___ if they are always the same distance apart (called "equidistant"), and will never meet
11. two triangles where we know two sides and the included angle are equal.
12. ____ triangle has three congruent sides
13. two angles are called ___ when their measures add up to 180 degrees
14. A theorem that follows on from another theorem
18. two figures or objects are ___ if they have the same shape and size
19. _____ _____ of a polygon is an angle at a vertex of the polygon, outside the polygon, formed by one side and the extension of an adjacent side
21. a pair of adjacent angles formed when two lines intersect
22. when parallel lines get crossed by a ___ many angles are the same
23. my Geometry teacher's name
24. When two triangles are congruent, all three pairs of corresponding sides are congruent and all three pairs of corresponding angles are congruent
26. when two lines are crossed by another line (a transversal), the angles in matching corners are called ____ angles
27. a statement that can be proven

2. ____ ____ angles always lie outside two lines that are intersected by the transversal and they are located on the opposite sides of the transversal.
4. two or more lines that have no intersections but are not parallel
5. ___ angles are a pair of opposite angles formed by intersecting lines
6. the longest side of the right-angled triangle
8. a line or a segment perpendicular to a segment that passes through the midpoint of the segment
10. a line that splits an angle into two equal angles
15. the two congruent sides of an isosceles triangle
16. Two angles and the side between them are congruent.
17. the angle made by the two congruent sides of an isosceles triangle
20. two triangles where we know two angles and the non-included side are congruent
25. y = mx + b